The Remington Model 870 is a pump-action shotgun manufactured by Remington Arms Company, USA. It is widely used by the public for sport shooting, hunting, and self-defense and also used by law enforcement and military organizations worldwide.

There are hundreds of variations of the Remington 870 in different models(Express, Marine, Mark 1, MCS, Police, Super Mag, Wingmaster and Tac-14) and different calibers(12, 16, 20, 28 gauges and .410 bore). From the original fifteen models offered, Remington currently produces dozens of models for civilian, law enforcement, and military sales.